Add link to release page

README.md

@@ -15,6 +15,8 @@ cd knotctl
 python3 setup.py --command-packages=stdeb.command bdist_deb
 sudo dpkg -i deb_dist/knotctl_0.0.1-1_all.deb
 ```
+A prebuilt deb-package is also available from the release page: https://code.smolnet.org/micke/knotctl/releases/
+
 ## Shell completion
 For bash: add this to .bashrc
 ```